PET is a milky white or light yellow highly crystalline polymers, the surface smooth and shiny. Creep resistance, fatigue resistance, abrasion resistance and dimensional stability, high hardness and wear small, with the largest thermoplastic toughness: good electrical insulation properties, low temperature affected, but poor corona resistance. Non-toxic, weather resistance, chemical resistance and good stability, low water absorption, Gidea cosmetic tubes resistance to weak acids and organic solvents, but intolerant of hot water immersion, not alkali.
PET resin glass transition temperature is higher, the crystallization speed, long molding cycle, long molding cycle, the molding shrinkage, poor dimensional stability, crystallization forming brittle, low heat resistance.
By crystallization nucleating agents, and agents and improved glass fiber reinforced, PET PBT nature of addition, there are the following features.
A thermal deformation temperature and long-term use temperature of the thermoplastic engineering highest common
2 because of high heat, Gidea cosmetic spray bottles reinforced PET in a solder bath 250 ℃ immersed 10S, almost no color distortion, particularly suitable for the preparation of soldering of electronic and electrical components:
3 Bending strength 200MPa, the elastic modulus of 4000MPa, creep and fatigue resistance is also very good, high surface hardness, mechanical properties similar to thermosetting plastics.
4 Due to the production of PET used in the production lipstick containers of ethylene glycol than PBT used butanediol cheap price almost in half, so the PET resin and PET is the plastic in the lowest price, with a very high price.
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